255331602 has 160 divisors (see below), whose sum is σ = 658627200. Its totient is φ = 73446912.

The previous prime is 255331591. The next prime is 255331603. The reversal of 255331602 is 206133552.

255331602 is a `hidden beast` number, since 2 + 5 + 53 + 3 + 1 + 602 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (255331603) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1836849 + ... + 1836987.

It is an arithmetic number, because the mean of its divisors is an integer number (4116420).

Almost surely, 2^255331602 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255331602, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (329313600).

255331602 is an abundant number, since it is smaller than the sum of its proper divisors (403295598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255331602 is a wasteful number, since it uses less digits than its factorization.

255331602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222 (or 213 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 255331602 is about 15979.0989107646. The cubic root of 255331602 is about 634.4073268068.

It can be divided in two parts, 255 and 331602, that multiplied together give a triangular number (84558510 = T₁₃₀₀₄).

The spelling of 255331602 in words is "two hundred fifty-five million, three hundred thirty-one thousand, six hundred two".